| OLD | NEW |
|---|
| (Empty) |
| 1 /* crypto/asn1/a_utf8.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include "cryptlib.h" | |
| 61 #include <openssl/asn1.h> | |
| 62 | |
| 63 | |
| 64 /* UTF8 utilities */ | |
| 65 | |
| 66 /* This parses a UTF8 string one character at a time. It is passed a pointer | |
| 67 * to the string and the length of the string. It sets 'value' to the value of | |
| 68 * the current character. It returns the number of characters read or a | |
| 69 * negative error code: | |
| 70 * -1 = string too short | |
| 71 * -2 = illegal character | |
| 72 * -3 = subsequent characters not of the form 10xxxxxx | |
| 73 * -4 = character encoded incorrectly (not minimal length). | |
| 74 */ | |
| 75 | |
| 76 int UTF8_getc(const unsigned char *str, int len, unsigned long *val) | |
| 77 { | |
| 78 const unsigned char *p; | |
| 79 unsigned long value; | |
| 80 int ret; | |
| 81 if(len <= 0) return 0; | |
| 82 p = str; | |
| 83 | |
| 84 /* Check syntax and work out the encoded value (if correct) */ | |
| 85 if((*p & 0x80) == 0) { | |
| 86 value = *p++ & 0x7f; | |
| 87 ret = 1; | |
| 88 } else if((*p & 0xe0) == 0xc0) { | |
| 89 if(len < 2) return -1; | |
| 90 if((p[1] & 0xc0) != 0x80) return -3; | |
| 91 value = (*p++ & 0x1f) << 6; | |
| 92 value |= *p++ & 0x3f; | |
| 93 if(value < 0x80) return -4; | |
| 94 ret = 2; | |
| 95 } else if((*p & 0xf0) == 0xe0) { | |
| 96 if(len < 3) return -1; | |
| 97 if( ((p[1] & 0xc0) != 0x80) | |
| 98 || ((p[2] & 0xc0) != 0x80) ) return -3; | |
| 99 value = (*p++ & 0xf) << 12; | |
| 100 value |= (*p++ & 0x3f) << 6; | |
| 101 value |= *p++ & 0x3f; | |
| 102 if(value < 0x800) return -4; | |
| 103 ret = 3; | |
| 104 } else if((*p & 0xf8) == 0xf0) { | |
| 105 if(len < 4) return -1; | |
| 106 if( ((p[1] & 0xc0) != 0x80) | |
| 107 || ((p[2] & 0xc0) != 0x80) | |
| 108 || ((p[3] & 0xc0) != 0x80) ) return -3; | |
| 109 value = ((unsigned long)(*p++ & 0x7)) << 18; | |
| 110 value |= (*p++ & 0x3f) << 12; | |
| 111 value |= (*p++ & 0x3f) << 6; | |
| 112 value |= *p++ & 0x3f; | |
| 113 if(value < 0x10000) return -4; | |
| 114 ret = 4; | |
| 115 } else if((*p & 0xfc) == 0xf8) { | |
| 116 if(len < 5) return -1; | |
| 117 if( ((p[1] & 0xc0) != 0x80) | |
| 118 || ((p[2] & 0xc0) != 0x80) | |
| 119 || ((p[3] & 0xc0) != 0x80) | |
| 120 || ((p[4] & 0xc0) != 0x80) ) return -3; | |
| 121 value = ((unsigned long)(*p++ & 0x3)) << 24; | |
| 122 value |= ((unsigned long)(*p++ & 0x3f)) << 18; | |
| 123 value |= ((unsigned long)(*p++ & 0x3f)) << 12; | |
| 124 value |= (*p++ & 0x3f) << 6; | |
| 125 value |= *p++ & 0x3f; | |
| 126 if(value < 0x200000) return -4; | |
| 127 ret = 5; | |
| 128 } else if((*p & 0xfe) == 0xfc) { | |
| 129 if(len < 6) return -1; | |
| 130 if( ((p[1] & 0xc0) != 0x80) | |
| 131 || ((p[2] & 0xc0) != 0x80) | |
| 132 || ((p[3] & 0xc0) != 0x80) | |
| 133 || ((p[4] & 0xc0) != 0x80) | |
| 134 || ((p[5] & 0xc0) != 0x80) ) return -3; | |
| 135 value = ((unsigned long)(*p++ & 0x1)) << 30; | |
| 136 value |= ((unsigned long)(*p++ & 0x3f)) << 24; | |
| 137 value |= ((unsigned long)(*p++ & 0x3f)) << 18; | |
| 138 value |= ((unsigned long)(*p++ & 0x3f)) << 12; | |
| 139 value |= (*p++ & 0x3f) << 6; | |
| 140 value |= *p++ & 0x3f; | |
| 141 if(value < 0x4000000) return -4; | |
| 142 ret = 6; | |
| 143 } else return -2; | |
| 144 *val = value; | |
| 145 return ret; | |
| 146 } | |
| 147 | |
| 148 /* This takes a character 'value' and writes the UTF8 encoded value in | |
| 149 * 'str' where 'str' is a buffer containing 'len' characters. Returns | |
| 150 * the number of characters written or -1 if 'len' is too small. 'str' can | |
| 151 * be set to NULL in which case it just returns the number of characters. | |
| 152 * It will need at most 6 characters. | |
| 153 */ | |
| 154 | |
| 155 int UTF8_putc(unsigned char *str, int len, unsigned long value) | |
| 156 { | |
| 157 if(!str) len = 6; /* Maximum we will need */ | |
| 158 else if(len <= 0) return -1; | |
| 159 if(value < 0x80) { | |
| 160 if(str) *str = (unsigned char)value; | |
| 161 return 1; | |
| 162 } | |
| 163 if(value < 0x800) { | |
| 164 if(len < 2) return -1; | |
| 165 if(str) { | |
| 166 *str++ = (unsigned char)(((value >> 6) & 0x1f) | 0xc0); | |
| 167 *str = (unsigned char)((value & 0x3f) | 0x80); | |
| 168 } | |
| 169 return 2; | |
| 170 } | |
| 171 if(value < 0x10000) { | |
| 172 if(len < 3) return -1; | |
| 173 if(str) { | |
| 174 *str++ = (unsigned char)(((value >> 12) & 0xf) | 0xe0); | |
| 175 *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80); | |
| 176 *str = (unsigned char)((value & 0x3f) | 0x80); | |
| 177 } | |
| 178 return 3; | |
| 179 } | |
| 180 if(value < 0x200000) { | |
| 181 if(len < 4) return -1; | |
| 182 if(str) { | |
| 183 *str++ = (unsigned char)(((value >> 18) & 0x7) | 0xf0); | |
| 184 *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80); | |
| 185 *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80); | |
| 186 *str = (unsigned char)((value & 0x3f) | 0x80); | |
| 187 } | |
| 188 return 4; | |
| 189 } | |
| 190 if(value < 0x4000000) { | |
| 191 if(len < 5) return -1; | |
| 192 if(str) { | |
| 193 *str++ = (unsigned char)(((value >> 24) & 0x3) | 0xf8); | |
| 194 *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80); | |
| 195 *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80); | |
| 196 *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80); | |
| 197 *str = (unsigned char)((value & 0x3f) | 0x80); | |
| 198 } | |
| 199 return 5; | |
| 200 } | |
| 201 if(len < 6) return -1; | |
| 202 if(str) { | |
| 203 *str++ = (unsigned char)(((value >> 30) & 0x1) | 0xfc); | |
| 204 *str++ = (unsigned char)(((value >> 24) & 0x3f) | 0x80); | |
| 205 *str++ = (unsigned char)(((value >> 18) & 0x3f) | 0x80); | |
| 206 *str++ = (unsigned char)(((value >> 12) & 0x3f) | 0x80); | |
| 207 *str++ = (unsigned char)(((value >> 6) & 0x3f) | 0x80); | |
| 208 *str = (unsigned char)((value & 0x3f) | 0x80); | |
| 209 } | |
| 210 return 6; | |
| 211 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master